An inhibitor of pigment production in onion bulb I exhibits dominant epistasis over another locus, the genotype iiRR producing red bulbs and iirr producing yellow bulbs. A pure white strain is crossed ...

I am studying the effects of tetrodotoxin and its symptoms when consumed. Numbness is one of the first sensations reported.
But I googled numbness and I couldn't find information about whether this ...

So I want to choose the correct set of pair of primers to amplify the ORF of the gene that corresponds to amino acids in a protein. The start and stop codons are underlined. (I know that these need to ...

Here's the problem:
One red blood cell is placed in a hypertonic solution of NaCl, another is
placed in a solution of CaCl2 equimolar with the NaCl solution. What
would you expect to happen and why?
...

This is a pedigree of a family in which bleeder disease, an x-recessive disease, is present. I am asked which marker, A or B, the disease is linked to.
I've asked about this type of problem before: ...

A man has the genotype AaBbCc, in other words he is heterozygous in three uncoupled loci on three different chromosomes. A, B and C are the dominant alleles while a, b and c are the recessive alleles.
...

1) What happens in the ovary and in the bloodstream that brings about this change in the uterus?
2) Why does the level of FSH decrease and remain at a relatively low level during the luteal phase of ...

What can cause an erythematous, fluctuant, nontender mass in the middle of the neck?
Full Case Study: (Its the last of 6 cases and I just can't figure this one out, because of all the possibilities, ...

I have the following assignment where I am to look at the "tree" (not sure the english word) and assign whether or not they can be autosomal dominant or recessive as well whether they can be X-linked ...

MEN 2A is a dominant inherited disease caused by a mutation in the RET proto-oncogene.
The probability of being sick when you have the mutation of the RET proto-oncogene varies with age and is assumed ...

Here's another question taken from "Concepts of Genetics," Klug et al (10ed), revolving around a paternity test. PCR and a Southern blot were carried out in order to determine whether 3 chimpanzees ...

A retrovirus with RNA genome infected a host cell. You would like to isolate the host cell’s RNA (rRNA, tRNA, and mRNA) from the virus RNA. What properties can you rely on to determine the three types ...

How can one improve a phylogenetic tree? If one was to make the 'golden standard' of phylogenetic trees what features would it have? Would it be highly reliable, well resolved etc? What other features ...

In a city, 4% of male population have color blindness. How many of the female are (a) color blind carrier, (b) color blind? Suppose the city holds Hardy Weinberg equilibrium.
My progress: 4% of male ...

How does one decide whether the presence of certain cell types is clinically important or negligible? Would the presence of certain cells in conjunction with other symptoms be enough, or should it be ...

A young animal has never had much energy. He is brought to a veterinarian for help and is sent to the animal hospital for some tests. There they discover his mitochondria can use only fatty acids and ...

From what I understand, if the tetrads resulting from a cross exhibit the same number of parental ditypes as there are nonparental ditypes, then the genes under consideration are said to be unlinked.
...

A new life form discovered on a distant planet has a genetic code consisting of five unique nucleotides and only one stop codon. If each codon has four bases,what is the maximum number of unique amino ...